Exploring the Different Types of Fasteners in CNC Machining(mechanical testing Edward)

  • Time:
  • Click:44
  • source:TANAY CNC Machining


CNC machining plays a crucial role in the manufacturing industry, enabling precise and accurate production of various components. One essential aspect of CNC machining is fasteners, which are indispensable for securing parts together. In this article, we will delve into the world of fasteners, exploring their types, functions, and importance in CNC machining.

1. Screws:
Screws are perhaps the most common type of fasteners used in CNC machining. They feature grooves on their shafts called threads, allowing them to be easily drilled into materials like metal, plastic, or wood. Varieties include flathead, pan head, round head, countersunk, and shoulder screws, each serving specific purposes based on their design.

2. Bolts:
Similar to screws, bolts are threaded fasteners that require nuts for proper assembly. Bolt heads come in different shapes (hexagonal, square, etc.), providing enhanced grip when tightening. Bolts are typically utilized for joining large or thick components together, often needing additional washers or spacers for alignment or stability.

3. Nuts:
Nuts are paired with bolts to secure components tightly. These small yet crucial fasteners have internal threading that matches the threads on the attached bolt. Various types of nuts exist, such as hex, wing, cap, and lock nuts, each offering unique properties and benefits depending on the application at hand.

4. Washers:
Washers are thin flat discs placed between fasteners (bolts or screws) and the surfaces they hold together. Acting as load distributors, they prevent damage caused by uneven loads, reduce friction, and increase stability. Common types include flat, spring, and lock washers, with each having distinct advantages and uses within CNC machining.

5. Rivets:
Rivets differ from conventional screws and bolts as they don't require threading to function. They consist of a head and a cylindrical shaft inserted through pre-drilled holes, forming an interlocking connection on the opposite side. Rivets are commonly used in structural applications to join sheets of materials such as metal or plastic, offering exceptional strength and durability.

6. Anchors:
Anchors are fasteners specifically designed for attaching objects to walls or other solid surfaces where there is limited material thickness. Common types include expansion anchors, toggle bolts, sleeve anchors, and concrete screws. CNC machining often relies on anchors when creating products required for installation or mounting purposes.

7. Clips and Clamps:
These fasteners are widely used in CNC machining to hold components together temporarily during assembly or production processes. Clips provide secure support by gripping onto edges, while clamps use adjustable pressure to firmly hold parts in place. They offer versatility and efficiency, reducing labor costs and increasing overall productivity.

8. Inserts:
Inserts serve as reinforcements within materials that do not possess sufficient thread strength or durability for direct fastening. These threaded bushings are installed using specialized tools, providing reliable threads for subsequent attachment with screws, bolts, or studs. CNC machining employs inserts in various applications, including plastic assemblies and soft metallic materials.


In CNC machining, understanding the different types of fasteners available is crucial for achieving precise and durable connections between components. From screws and bolts to washers, rivets, and anchors, each fastener plays a unique role based on its design and intended purpose. By choosing the right fasteners for specific applications, manufacturers can ensure the integrity and reliability of their products. Whether it's securing electronic components, assembling machinery, or reinforcing structures, the world of fasteners continues to evolve alongside CNC machining, enabling endless possibilities in manufacturing. CNC Milling CNC Machining